What is a Temperature and humidity sensor?

A temperature / humidity sensor is a device for measuring temperature / humidity, and consists of a temperature sensor and a humidity sensor. Temperature sensors are roughly divided into three types: resistance temperature detectors (RTDs), linear resistors, and thermistors. Resistance temperature detectors (RTDs): Highly stable, linear resistors have the property of increasing temperature and resistance almost linearly. Thermistor: Small and sensitive. Humidity sensors are roughly divided into two types: resistance change type and capacitance change type. Variable resistance type: Inexpensive and does not require regular calibration, the capacitive type excels in detecting low humidity.

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